firstup hppacito, Kudos to you for having a go!
Ive had a crack at designing my own PCB's before. Its not as hard as a lot of people think.
The most complex was a a Cvid->RGB converter, I found a few complete products on the net for ridiculous prices ( AU$300-600), in the end I got the parts together, translated the schematic from an existing product onto PCB and built my own.
All up, it cost less than AU$50 and took maybe 3 days and a couple of tries getting the PCB right. Its been working fine driving a RGB-only LCD for about 2 years!
The hardest part was getting some rare parts and building my own RF chokes.
Good luck, keep having fun & dont listen to the naysayers!!!